Well a couple times I have. When you become obsessed with DMT in the beginning it is preoccupied in your mind and is easy to be conveyed in the dream state. I smoked it in a dream while I was lucid where the entire scope of my vision was replaced with fractals and images flashing about 50 per second it seemed. The second time I smoked DMT in my dream was when I got the carrier wave coming on strong but would not let go, which I awoke from in sleep paralysis. There was a greenish/black demon being right in my face which was sort of intimidating. When I think about DMT I believe it breaks open any boundary on the imagination which is why we can perceive of it and experience things in dreams like this.

Here is a salvia lucid dream I had, it was amazing!

Shocking Lucid Salvia Dream